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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 145 · 40 questions
TalentJR

How to solve it (Know the shape numbers): Sides: triangle 3, square and rectangle 4, pentagon 5, hexagon 6, octagon 8. A flat shape has as many corners as sides. Several of one shape: multiply (3 triangles → 3 × 3 = 9 sides). Two kinds of shape: work each out, then add. A cube has 6 faces, 12 edges and 8 corners.

NameDateTime takenScore ___ / 40
  1. 1.How many corners do 3 cubes have altogether? (a) 36 (b) 18 (c) 24 (d) 8
  2. 2.How many corners do 2 rectangles and 1 octagon have altogether? (a) 20 (b) 8 (c) 3 (d) 16
  3. 3.How many faces do 3 cubes have altogether? (a) 6 (b) 24 (c) 18 (d) 36
  4. 4.How many sides do 2 hexagons and 2 triangles have altogether? (a) 12 (b) 6 (c) 18 (d) 4
  5. 5.How many edges do 3 cubes have altogether? (a) 24 (b) 36 (c) 18 (d) 12
  6. 6.How many edges do 4 cubes have altogether? (a) 48 (b) 12 (c) 32 (d) 24
  7. 7.How many corners do 4 squares and 5 triangles have altogether? (a) 15 (b) 16 (c) 32 (d) 31
  8. 8.How many corners do 4 pentagons and 2 rectangles have altogether? (a) 26 (b) 28 (c) 8 (d) 20
  9. 9.How many sides do 1 square and 1 rectangle have altogether? (a) 9 (b) 4 (c) 8 (d) 2
  10. 10.How many edges do 5 cubes have altogether? (a) 12 (b) 40 (c) 30 (d) 60
  11. 11.How many corners do 5 rectangles and 4 pentagons have altogether? (a) 20 (b) 9 (c) 40 (d) 41
  12. 12.How many edges do 2 cubes have altogether? (a) 12 (b) 25 (c) 16 (d) 24
  13. 13.How many sides do 1 square and 3 rectangles have altogether? (a) 17 (b) 4 (c) 16 (d) 12
  14. 14.How many corners do 4 triangles and 4 octagons have altogether? (a) 32 (b) 12 (c) 8 (d) 44
  15. 15.How many corners do 4 cubes have altogether? (a) 8 (b) 48 (c) 32 (d) 24
  16. 16.How many corners do 1 hexagon and 3 octagons have altogether? (a) 26 (b) 24 (c) 6 (d) 30
  17. 17.How many corners do 1 octagon and 2 pentagons have altogether? (a) 18 (b) 10 (c) 21 (d) 8
  18. 18.How many sides do 4 pentagons and 2 squares have altogether? (a) 26 (b) 20 (c) 8 (d) 28
  19. 19.How many corners do 2 cubes have altogether? (a) 24 (b) 8 (c) 16 (d) 12
  20. 20.How many sides do 1 octagon and 2 squares have altogether? (a) 3 (b) 8 (c) 16 (d) 20
  21. 21.How many faces do 5 cubes have altogether? (a) 30 (b) 40 (c) 6 (d) 60
  22. 22.How many faces do 2 cubes have altogether? (a) 12 (b) 16 (c) 6 (d) 24
  23. 23.How many corners do 1 triangle and 2 rectangles have altogether? (a) 11 (b) 3 (c) 10 (d) 8
  24. 24.How many sides do 5 pentagons and 3 squares have altogether? (a) 37 (b) 12 (c) 25 (d) 35
  25. 25.How many sides do 1 hexagon and 2 pentagons have altogether? (a) 16 (b) 17 (c) 10 (d) 6
  26. 26.How many corners do 4 triangles and 3 pentagons have altogether? (a) 29 (b) 15 (c) 12 (d) 27
  27. 27.How many faces do 4 cubes have altogether? (a) 32 (b) 6 (c) 24 (d) 48
  28. 28.How many sides do 4 rectangles and 5 squares have altogether? (a) 16 (b) 20 (c) 36 (d) 9
  29. 29.How many corners do 2 pentagons and 1 triangle have altogether? (a) 3 (b) 10 (c) 11 (d) 13
  30. 30.How many corners do 1 rectangle and 4 triangles have altogether? (a) 12 (b) 16 (c) 19 (d) 4
  31. 31.How many sides do 3 pentagons and 3 squares have altogether? (a) 15 (b) 12 (c) 6 (d) 27
  32. 32.How many sides do 4 octagons and 5 squares have altogether? (a) 56 (b) 20 (c) 52 (d) 32
  33. 33.How many corners do 3 rectangles and 5 triangles have altogether? (a) 12 (b) 29 (c) 15 (d) 27
  34. 34.How many sides do 2 rectangles and 4 squares have altogether? (a) 6 (b) 8 (c) 24 (d) 16
  35. 35.How many corners do 1 rectangle and 5 triangles have altogether? (a) 4 (b) 23 (c) 15 (d) 19
  36. 36.How many corners do 5 cubes have altogether? (a) 40 (b) 8 (c) 60 (d) 30
  37. 37.How many corners do 1 square and 1 octagon have altogether? (a) 8 (b) 2 (c) 12 (d) 4
  38. 38.How many corners do 4 rectangles and 1 hexagon have altogether? (a) 22 (b) 16 (c) 28 (d) 6
  39. 39.How many corners do 4 squares and 4 rectangles have altogether? (a) 16 (b) 33 (c) 8 (d) 32
  40. 40.How many sides do 4 octagons and 5 pentagons have altogether? (a) 60 (b) 57 (c) 25 (d) 32

Answer key

  1. 24
  2. 16
  3. 18
  4. 18
  5. 36
  6. 48
  7. 31
  8. 28
  9. 8
  10. 60
  11. 40
  12. 24
  13. 16
  14. 44
  15. 32
  16. 30
  17. 18
  18. 28
  19. 16
  20. 16
  21. 30
  22. 12
  23. 11
  24. 37
  25. 16
  26. 27
  27. 24
  28. 36
  29. 13
  30. 16
  31. 27
  32. 52
  33. 27
  34. 24
  35. 19
  36. 40
  37. 12
  38. 22
  39. 32
  40. 57

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